Combined percolator and still



(No Model.) I

B. FENNERT COMBINED PERGOLATOR AND STILL. -No. 253,360.

WITNESSES: INYENIOR:

. BY ATTORNEYS.

UNITED STATES PATENT O FICE.

BYRON FENNER, OF WESTFIELD, NEW YORK.

COMBINED PERCOLATOR AND STILL.

SPECIFICATION formingpart of Letters Patent No. 253,360, dated February '7, 1882.

Application filed May 25, 1881.

' Improved Combined Percolator and Still, of

which the following is a specification.

In the accompanying drawings, Figure 1 is a central vertical section of my invention when arranged for use as a still. Fig.2 is a top view to of the still attachment with part of the conical partition broken away to show the interior annularrim, and Fig. 3 is a top view of the percolator with the still and cover removed.

Similar letters of reference indicate corre- 1 5 sponding parts.

The receptacle or percolator A, in which the material the strength of which it is desired to obtain is placed,is preferably cone-shaped, and formed at the upper edge with the flange a, by which the receptacle is suspended in the heating-tank B. The bottom of the receptacle A is provided with an opening, 0, which communicates with the lateral tube 0, which latter, when the percolator is in place in the tank, registers with a hole in the tank, and the flanged stop-cock D screws into the end of the tubeandserves to keep the percolator in place clndl to make a tightjoint over the hole in the an r.

Near the bottom of the percolator is placed the perforated diaphragm d, which prevents the material in the percolator from obstructing the free flow of the menstruum from the bottom of the percolator.

When the device is to be used for obtaining the strength or color, or the propertiesof any material by percolation or extraction, or when it is to be used for making decoctions or infusions, or for filtering purposes where heat should be maintained, the still attachment E is to be removed and the cover (shown in dotted lines in Fig. 1)-may or may not be placed over the receptacle, as deemed best. Water is then to be admitted to the tank B through the pipe F, and heat applied to the tank, either externally or by means of pipes within the tank, the heat being communicated to the percolator only through the medium of the water. By means of this water-bath the material in the (N0 model.)

percolator may be readily maintained at any temperature above or below the boiling-point best adapted for the object or purpose sought and the particular material being treated.

The still attachment E is of larger diameter than the tank B, and when in place upon the 5 tank the bottom of it rests in the annular chamber G, formed around the top or upper end of the tank, which chamber should be filled with water when the still is in place to seal the joint between the two parts of the apparatus and prevent the escape of the vapors.

A short distance above the lower edge of the still attachmentis secured upon the inside the truncated-cone-shaped flange e, which forms an annular gutter around the inside of the still, whichis designed to conduct the distillate which flows down from the conical partition or bottom It of the condenser to the pipe f, through which it may be conducted to any convenient vessel. The condenser is formed by securing the conical partition 72. below the upper edge of the still, thus forming the receptacle H, in which water or ice is to be placed, so that the vapors, as they arise from the percolator A, coming in contact with the cold plate h, will be condensed to a liquid and flow down into the gutter and pass out the pipe f, as above mentioned.

It will be understood that by removing the still attachment and the cover of the receptacle. A thedevice may be used for obtaining the strength or properties of drugs and other substance in the form of sirups or fluid or solid extracts by water-bath evaporation, as well as by distillation and the other methods mentioned.

Though I have shown my invention built upon a small scale and adapted for pharmaceutical uses, it is obvious that it may be built upon a large scale and used for other purposes, such as the treatment of barks used in tanning dye-woods, &c.

By the use of the water-bath a uniform high or low heat may be maintained through the whole mass in the percolator, and varied above or below the boiling-point to suit the particular substance treated, which is of great ad vantage in hastening the extraction and holding in the menstruum the soluble properties of the drugs or other substances under treatment.

Having thus fully described my invention, I claim as new and desire to secure by Letters 5 Patent- 1. The receptacle A, formed with flange a, and having opening 0 in the bottom, and diaphragm d and the surrounding water-tank B, formed with water-seal G, in combination with 10 the removable still attachmentE, substantially as and for the purposes specified.

2. The still attachment E, provided with the flange e, and the conical partition h, form'- ing the condenser H, in combination with the tank B and water-seal G, substantiallyin the I 5 manner and for the purposes set forth.

3. The water-tank B, formed with the waterseal G and the receptacle A, suspended in the tank, in combination with the removable still, the lower edge of which is adapted to fit in the 20 chamber Gr, substantially as set forth.

BYRON FENNER.

Witnesses:

ELIAS F. PERSONS, CLARENCE E. WILsoN. 

